Lesson 15: Leveraging NetInstall Flashcards
Understand the concepts of NetBoot, NetInstall, and NetRestore; Create an image for deployment; Configure the NetInstall service; Configure clients to use NetInstall; Learn to troubleshoot NetInstall
What are the advantages of using NetBoot?
Because NetBoot unifies and centralizes the system software that NetBoot clients use, software configuration and maintenance are reduced to a minimum. A single change to a NetBoot image propagates to all client computers on the next startup. NetBoot also decouples the system software from the computer, decreasing potential time invested in software troubleshooting.
What are three ways to configure the network startup disk?
A client can select a network disk image via the Startup pane within System Preferences, by holding down the N key at startup to use the default NetInstall image, or by using the Option key to enter the Startup Manager.
Which network protocols are used during the NetInstall startup sequence? What components are delivered over each of these protocols?
NetInstall makes use of DHCP, TFTP, NFS, and HTTP during the NetInstall client startup sequence. DHCP provides the IP address, TFTP delivers the boot ROM (“booter”) file, and NFS or HTTP is used to deliver the network disk image.
What is a NetBoot shadow file?
Because the NetBoot boot image is read-only, anything that the client computer writes to the volume is cached in the shadow file. This allows a user to make changes to the boot volume, including setting preferences and storing files; however, when the computer is restarted, all changes are erased.
What are the major differences between NetBoot, NetInstall, and NetRestore images?
NetBoot allows multiple computers to boot into the same environment. NetInstall provides a convenient way to install operating systems and packages onto multiple computers. NetRestore provides a way to clone an existing image to multiple computers.
